Author: jhibbits
Date: Sun Feb 19 19:56:12 2017
New Revision: 313964
URL: https://svnweb.freebsd.org/changeset/base/313964
Log:
Add a driver for the RouterBoard RB800 User LED
This may work on other RouterBoard PPC platforms, but I don't have any to test
with.
Added:
head/sys/powerpc/mikrotik/rb_led.c (contents, props changed)
Modified:
head/sys/conf/files.powerpc
Modified: head/sys/conf/files.powerpc
==============================================================================
--- head/sys/conf/files.powerpc Sun Feb 19 19:46:47 2017 (r313963)
+++ head/sys/conf/files.powerpc Sun Feb 19 19:56:12 2017 (r313964)
@@ -134,6 +134,7 @@ powerpc/mambo/mambo.c optional mambo
powerpc/mambo/mambo_console.c optional mambo
powerpc/mambo/mambo_disk.c optional mambo
powerpc/mikrotik/platform_rb.c optional mikrotik
+powerpc/mikrotik/rb_led.c optional mikrotik
powerpc/mpc85xx/atpic.c optional mpc85xx isa
powerpc/mpc85xx/ds1553_bus_fdt.c optional ds1553 fdt
powerpc/mpc85xx/ds1553_core.c optional ds1553
Added: head/sys/powerpc/mikrotik/rb_led.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/powerpc/mikrotik/rb_led.c Sun Feb 19 19:56:12 2017
(r313964)
@@ -0,0 +1,149 @@
+/*-
+ * Copyright (c) 2017 Justin Hibbits
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <sys/conf.h>
+#include <sys/kernel.h>
+
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/led/led.h>
+
+#include "gpio_if.h"
+
+struct rbled_softc {
+ struct cdev *sc_led;
+ device_t sc_gpio;
+ uint32_t sc_ledpin;
+};
+
+static int rbled_probe(device_t);
+static int rbled_attach(device_t);
+static int rbled_detach(device_t);
+static void rbled_toggle(void *, int);
+
+static device_method_t rbled_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, rbled_probe),
+ DEVMETHOD(device_attach, rbled_attach),
+ DEVMETHOD(device_detach, rbled_detach),
+
+ DEVMETHOD_END
+};
+
+static driver_t rbled_driver = {
+ "rbled",
+ rbled_methods,
+ sizeof(struct rbled_softc),
+};
+
+static devclass_t rbled_devclass;
+
+DRIVER_MODULE(rbled, simplebus, rbled_driver, rbled_devclass, 0, 0);
+
+static int
+rbled_probe(device_t dev)
+{
+ phandle_t node;
+ const char *name;
+ cell_t gp[2];
+ char model[6];
+
+ node = ofw_bus_get_node(dev);
+
+ name = ofw_bus_get_name(dev);
+ if (name == NULL)
+ return (ENXIO);
+ if (strcmp(name, "led") != 0)
+ return (ENXIO);
+
+ if (OF_getprop(node, "user_led", gp, sizeof(gp)) <= 0)
+ return (ENXIO);
+
+ /* Check root model. */
+ node = OF_peer(0);
+ if (OF_getprop(node, "model", model, sizeof(model)) <= 0)
+ return (ENXIO);
+ if (strcmp(model, "RB800") != 0)
+ return (ENXIO);
+
+ device_set_desc(dev, "RouterBoard LED");
+ return (0);
+}
+
+static int
+rbled_attach(device_t dev)
+{
+ struct rbled_softc *sc;
+ phandle_t node;
+ cell_t gp[2];
+
+ sc = device_get_softc(dev);
+ node = ofw_bus_get_node(dev);
+
+ if (OF_getprop(node, "user_led", gp, sizeof(gp)) <= 0)
+ return (ENXIO);
+
+ sc->sc_gpio = OF_device_from_xref(gp[0]);
+ if (sc->sc_gpio == NULL) {
+ device_printf(dev, "No GPIO resource found!\n");
+ return (ENXIO);
+ }
+ sc->sc_ledpin = gp[1];
+
+ sc->sc_led = led_create(rbled_toggle, sc, "user_led");
+
+ if (sc->sc_led == NULL)
+ return (ENXIO);
+
+ return (0);
+}
+
+static int
+rbled_detach(device_t dev)
+{
+ struct rbled_softc *sc;
+
+ sc = device_get_softc(dev);
+ led_destroy(sc->sc_led);
+
+ return (0);
+}
+
+static void
+rbled_toggle(void *priv, int onoff)
+{
+ struct rbled_softc *sc = priv;
+
+ GPIO_PIN_SET(sc->sc_gpio, sc->sc_ledpin, onoff);
+}
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